摘要:
A device for feeding of individual sheets to a plate (4) of an office machine, in particular of a matrix printer (1), is provided with several storage bins (5, 6). In each case a separating roller (7, 8) is coordinated to the storage bins (5, 6) and the separating roller (7, 8) is connected to a drive motor (9) via a gear train. In order to create a reliably operating storage bin selection, which can be employed for larger distances and for larger-volume storage bins, it is disclosed that the drive motor (9) can be left-hand or right-hand rotatably controlled, that the drive motor pinion (10) engages a first gear wheel (11), that an eccentrically supported cam (12) is carried by the first gear wheel (11), that the cam (12) engages into a switching rocker (13), and that at least a second gear wheel (15) is rotatably supported at the switching rocker (13) supported around a horizontal axle (14), where the second gear wheel ( 15) is tilted, depending on the rotary direction of the drive motor (9), into engagement with the respective gear wheel (16, 17) of one of the separating rollers (7, 8).
摘要:
A printer station (1) with output discharging device (3) for individual sheets (6) is in particular used for laser page printers. An outwardly directed output discharging device (3) follows to output roller pairs (5), as seen in transport direction (7) of the printed individual sheets (6). In order to dispose the output discharging device (3) in a space-saving fashion, and in order to create the possibility for the operator to adjust the output discharging device (3) to the local special situation, the output discharging device (3) is tiltably supported at the printer frame (4) of the printer station (1), where the output discharging device (3) is furnished with drivable friction roller pairs (13), disposed behind the output roller pairs (5), as seen in transport direction (7). The shafts (14, 15) of the friction roller pairs (13) are in each case rotatably supported at the side walls (8,9) of the tiltable output discharging device (3).
摘要:
It is proposed that a pneumatic suspension leveling system for vehicles with a compressor which can be turned on and off by a control device in function of demand, which compressor only needs to operate intermittently, with predetermined on-time duration, during normal operation, be improved with respect to its functional capacity. This problem is solved in accordance with the invention in that the control device of the pneumatic suspension leveling system varies the on-time duration of the compressor in function of the heat transfer conditions which prevail between the compressor and the air enveloping the latter.
摘要:
In an apparatus for the feeding of individual sheets (1) into office machines (2) in which the individual sheets (1) form a stack (3) of sheets atop which rotatively-driven fixed delivery rolls (4) rest and from which individual sheets (1) can be drawn over separating corners (5) of a paper-receiving frame (6), the stack (3) of sheets lies on a spring-action swing plate (8) between lateral paper-guide frames (7a, 7b). The invention provides for selectively alternative use, for supporting the sheet stack (3), of either the fixed paper-receiving frame (6) or of a separate and additional paper cassette (12) which is engageable with the machine (2) such that the spacing between the separating corners (30) on the cassette (12) and the circumference of the delivery rolls (4), when the cassette is mounted on the machine (2), is the same as the normal spacing between the separating corners (5) on the paper-receiving frame (6) and the circumference of the delivery rolls (4).
摘要:
A printing platen particularly for matrix printers is comprised of an aluminum or synthetic body carrying a thin layer of a ceramic material, preferably aluminum oxide, titanium oxide, chromium dioxide or a blend thereof. Such a platen is sufficiently frictional and hard for withstanding the impact of high speed print hammers or needles.
摘要:
Single sheet feeding from a stack is provided by placing the stack onto flat bars defining a stack bottom and being part of a pivotable frame. That frame includes holddown fingers engaging the top sheet at its front edges, and, two separating rollers are provided laterally offset and at a higher level; the rollers are reversibly driven to pull the top sheet out from under the fingers, and upon reversing the rollers slide that sheet towards a platen drum being selectively drivingly coupled to the separating rollers.
摘要:
A printer with a print-head distance-setting device for adjusting the distance (1) between print head (2) and print-material counter support (3) for recording-material carriers (4) of unequal thickness, resting on the print-material counter support (3), including a mechanical sensing member (5) for controlling a print head (2), adjustable in a direction perpendicular relative to the longitudinal direction of the slider carriage motion, where the print head (2) is disposed on a longitudinally movable print-head slider carriage (7), which print-head slider carriage (7) in turn is guided with a pair of parallel guide axles (9), of which one guide axle (9) is supported by way of a pair of eccentric-disposed pins (10) and of which the second guide axle (9) is cross-movably supported in the printer side walls (32). In order to achieve a simpler and more easily constructed print-head distance-setting device, which can in addition be controlled more accurately, an electrical analog signal, generatable by the setting motions of the sensing member (5), serves in a converted configuration of an electronic digital signal in an electronic circuit (11) for the control of a step motor (12), supported at a printer frame, where the step motor (12) forms a servo drive (13) for the pair of eccentric-disposed pins (10) of the guide axle (9).
摘要:
A transporting device for marginal punched single-layered or multiple-layered webs of material, in particular for record carriers in a printer, is provided. Such a transporting device serves for marginal punched single-layered or multiple-layered webs of material (1), in particular for paper record carriers in a printer, and consists of frames (2) on both sides of the web of material (1) which are adjustable to the width of the web of material, with sprockets (3a,3b) in each case rotatably mounted thereon, of a sprocket drive, of continuous toothed belts (6) stretched around the sprockets (3a,3b) and provided on the inner side (9) with teeth (10), on which belts transporting pins (8) are attached on the outer side (7), which engage force-locking and form-locking into the marginal perforations of the web of material (1) and further consists in each case of a guide plate (11 or 12) able to be pivoted parallel to the web of material (1) up to a guiding slit (14) to the frames (2), which plates cover the web of material (1) and which are provided in each case with a recess (15) for the unimpeded movement of the transporting pins (8) and further consist of means to press the web of material (1) against the toothed belts (6).
摘要:
A linear or annular optical grating cooperates with a detector unit having two detectors on the front face of a carrier member of rotational symmetry and being either directly rotatable through a rear-face screwdriver slot, or via a cam-operated lever, the cam being rotatable by screwdriver action. The two detectors are aligned along a diameter line of the carrier member and will produce two phase-shifted pulse trains upon relative movement between the detection unit and the grating. The preferred field of application is matrix printers, the grating defining print position.
摘要:
The device for the filling of the ink supply system in an inkjet printer with a nozzle printhead, and ink storage container, and a printhead tank connected to the ink storage container or connectable to the ink storage container disposed on the printhead carriage, furthermore with a cleaning station, wherein the nozzle printhead is sealingly movable to the cleaning station and an exhaust pump connected to the cleaning station, resolves the object of the present invention by having the nozzle printhead with the nozzle inputs placeable at the cleaning station and the nozzle inputs connected to a first nozzle printhead tank part chamber, wherein the first nozzle printhead tank part chamber is separated from a second printhead tank part chamber adjoining to the first printhead tank part chamber.